JPH0640871B2 - Image display device - Google Patents

Description

Description: TECHNICAL FIELD OF THE INVENTION The present invention relates to an image display device, and more particularly, to image display for displaying an animation (moving image display) of an image of an organ accompanied by periodic movements such as a heart of a subject. Regarding the device.

[Technical background of the invention and its problems] Conventionally, for example, when diagnosing a heart, image data relating to the heart is collected using an X-ray CT apparatus, a magnetic resonance imaging apparatus (MRI), or the like. This data acquisition is performed at different slice positions of the heart, for example, at adjacent slice positions. Further, by making full use of ultra-high-speed imaging technology or a method using an electrocardiogram, a plurality of phases of data for one heartbeat cycle at each adjacent slice position of the heart are collected. The above-mentioned large number of data obtained by the image data processing apparatus is set to 1 at each slice position adjacent to each other of the heart and at each slice position.
Each tomographic image data having one heartbeat period for each slice position adjacent to each other, which is obtained by image reconstruction for each different heartbeat period, is finally stored in the storage device. The tomographic image data stored in the storage device is for a predetermined slice position to be displayed by a doctor,
It is read out as a plurality of tomographic image data for one heartbeat cycle arranged in phase order, and an image is displayed on one screen of the display device by sequentially reading out the images at the slice positions in phase order. Therefore, the doctor can only observe the slice image at the displayed predetermined position at a time, and when designating and displaying another adjacent slice position, the image at the previous slice position disappears from the screen, so that the slice image It became difficult to compare the movements of the heart at each position, and it was difficult to capture the degree of dilatation and conduction of stimulation in the diseased part, leading to a decrease in diagnostic accuracy and a decrease in diagnostic efficiency for heart disease.

[Object of the Invention] An object of the present invention is to make it possible to display animation images of a plurality of different slice positions of an organ such as a heart accompanied by periodic motion in synchronization on the same screen of a display device.
An object of the present invention is to provide an image display device capable of improving the diagnostic accuracy and diagnostic efficiency of heart disease and the like.

[Summary of the Invention] In order to achieve the above object, the present invention provides image data for collecting image data at a plurality of different phase points for at least one cycle for each different slice position of a subject with periodic motion. For each slice position by receiving the image data output from the collecting device and the image data collecting device,
An arithmetic unit for creating a plurality of tomographic image data at a plurality of different phase points for at least one cycle, a storage unit for storing the plurality of tomographic image data output from the arithmetic unit, and an image display command to the arithmetic unit. And a display command from the operating device to the computing device, the plurality of tomographic image data for each of the different slice positions stored in the storage device are synchronized in a phase order of at least one cycle. And an image display device for animation-displaying tomographic images at different slice positions on the same display screen.

[Embodiment of the Invention] An embodiment of the present invention will be described with reference to the drawings. In FIG. 1, an image data acquisition apparatus 1 is composed of, for example, an X-ray CT apparatus, an MRI apparatus, etc., which are designed for ultra-high-speed imaging technology, electrocardiogram utilization method, etc. Image data of a plurality of different phases for one cycle of each slice data of the accompanying organ is collected. The collected data is supplied to the central processing unit 2, where it is subjected to data processing to create a plurality of tomographic image data at different phase points for one cycle for each adjacent slice position. These tomographic image data are stored in the external storage device 3 such as a magnetic disk in the phase order of one cycle for each adjacent slice position.
These stored tomographic image data are supplied from the keyboard operating device 4 to the central processing unit 2 by a display command, so that the tomographic image data of adjacent slice positions are all arranged in phase order between the slice positions. Phase-synchronized and supplied. As a result, an animation composite image in which the tomographic images at adjacent slice positions are synchronized on the same screen of the image display 5 is displayed. The state of this composite image display is shown in FIG. The example shown is adjacent 3
In the case of the slice positions at different locations, images 7a, 7b, 7c at different slice positions are displayed on the same screen 6 of the image display 5 in synchronism with each other.

In order to control the state of the image displayed on the same display screen of the image display device 5, a superimposition degree setting device 8 and a viewing angle setting device 9 which can be operated by the keyboard operating device 4 are provided. The former superimposition degree setting device 8 controls the degree of overlap of the images 7a, 7b, 7c at each slice position that are simultaneously displayed on the same screen of the image display device 5, and the latter viewing angle setting device 9 controls each of the images on the same display screen. The display viewing angle of each of the images 7a, 7b, 7c at the slice position is controlled. The states of these controls are shown in FIGS. 2 to 4. FIG. 2 shows the case where the superimposition degree and the viewing angle are the smallest, and FIG.
The figure shows an intermediate case between the two. Since the superimposition degree and the display viewing angle of the composite display image can be arbitrarily selected in this manner, the display state of the diagnosis target organ can be optimally controlled, and the diagnosis accuracy can be further improved.

Here, for example, if the contour line indicating the boundary between the myocardium and the endocardial lumen is obtained in advance and the contour line data is also incorporated in the synthetic image data when the image is reconstructed, the behavior of the contour line in the display image can be changed. Since it can also be observed, it is possible to further improve the diagnostic accuracy of the heart.

Further, an electrocardiogram of the same subject is detected, and the data is stored in the external storage device 3 together with the tomographic image data, and as shown in FIG. 5, a graph pattern is displayed on the image display 5 during the animation display of the composite image. If it is displayed as 10, simultaneously, the diagnostic findings obtained from the electrocardiogram can be compared with the display animation composite image of the actual heart, so that the diagnostic accuracy can be improved.

[Effects of the Invention] As described above, according to the present invention, each tomographic image at each slice position of an organ such as the heart accompanied by periodic motion is
Since one cycle of animation is synchronously displayed on the same surface of the image display, the movement of the organ can be grasped as a whole by observing the composite display image, and therefore the diseased part of the diseased part can be grasped. Since the degree of expansion and the state of stimulus conduction can be easily grasped, it is possible to improve the diagnosis accuracy and efficiency of the disease.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of the present invention, and FIGS. 2 to 5 are views showing examples of display composite images according to the embodiment. 1 ... Image data collecting device, 2 ... Central processing unit 3 ... External storage device, 4 ... Keyboard operating device 5 ... Image display device

Claims (2)

[Claims] 1. An image data collecting device for collecting image data at a plurality of different phase points for at least one cycle for each different slice position of an object with periodic motion, and an image data collecting device for outputting the image data. And a plurality of tomographic image data output from the arithmetic device, the plurality of tomographic image data at a plurality of phase points different for at least one cycle for each slice position. A storage device for storing, an operating device for giving an image display command to the arithmetic device, and a plurality of tomographic images for each of the different slice positions stored in the storage device according to the display command from the operating device to the arithmetic device. An image display is provided in which data is supplied in synchronism in a phase sequence of at least one cycle, and tomographic images of different slice positions are displayed on the same display screen as an animation. An image display device, characterized by Bei. 2. The image display device according to claim 1, wherein a slice for each slice position that constitutes an animation display image that is operated by the operation device and is displayed on the display screen of the image display device. A superimposition degree setting device that controls the degree of image overlap, and a viewpoint setting that controls the viewing angle of a tomographic image for each slice position that constitutes an animation display image that is operated by the operating device and displayed on the display screen of the image display device. Image display device equipped with a container.